title: The Cope rearrangement of gem-dimethyl substituted divinylcyclopropanes.
abstract: The reactivity of a range of substituted divinylcyclopropanes towards the thermal Cope rearrangement has been examined. The effects of gem-dimethyl substitution on the cyclopropane, the alkene geometry, the relative stereochemistry of the cyclopropane and the steric and electronic effects of a range of functional groups were all examined, and the methods developed were used to synthesise a range of functionalised 1,4-cycloheptadienes in high yields.
authors.affiliation: Department of Chemistry, University of York, York, YO10 5DD, UK. richard.taylor@york.ac.uk.
authors.forename: Jonathan D
authors.initials: JD
authors.lastname: Osler
authors.forename: William P
authors.initials: WP
authors.lastname: Unsworth
authors.forename: Richard J K
authors.initials: RJ
authors.lastname: Taylor